Introducing Supercronic - Cron for containers

We’re proud to announce our latest open-source project: Supercronic. Supercronic is a cron implementation designed with containers in mind.

Why a new cron for containers?

We’ve helped hundreds of Enclave customers roll out scheduled tasks in containerized environments. Along the way, we identified a number of recurring issues using traditional cron implementations such as Vixie cron or dcron in containers:

They purge the environment before running jobs. As a result, jobs fail, because all their configuration was provided in environment variables.

They redirect all output to log files, email or /dev/null. As a result, job logs are lost, because the user expected those logs to be routed to stdout / stderr.